Radio-frequency module and communication device
A radio-frequency module includes a first power amplifier, a second power amplifier, a switch, a plurality of first filters, and a second filter. The first power amplifier amplifies a transmission signal of a first frequency band and outputs the amplified transmission signal. The second power amplifier amplifies a transmission signal of a second frequency band and outputs the amplified transmission signal. The pass bands of the plurality of first filters are contained within the first frequency band. The pass band of the second filter is contained within the second frequency band. The second power amplifier has a greater output power level than the first power amplifier. The first output terminal of the first power amplifier is switchably connectable to the plurality of first filters via the switch. The second output terminal of the second power amplifier is connected to the second filter without the switch interposed therebetween.
1. A radio-frequency module comprising:
a first antenna terminal;
a second antenna terminal;
a first switch that has a first common terminal connected to the first antenna terminal, a second common terminal connected to the second antenna terminal, a first selection terminal and a second selection terminal connectable to the first common terminal, and a third selection terminal connectable to the second common terminal;
a second switch that has a fourth selection terminal connected to the first selection terminal, a fifth selection terminal connected to the second selection terminal, and a third common terminal connectable to the fourth selection terminal and the fifth selection terminal;
a first filter connected to between the first selection terminal and the fourth selection terminal;
a second filter connected to between the second selection terminal and the fifth selection terminal;
a first power amplifier connected to the third common terminal;
a second power amplifier connected to the third selection terminal; and
a third filter connected to between the third selection terminal and the second power amplifier,
wherein the first power amplifier is configured to amplify a first transmission signal within a first frequency band and output the amplified first transmission signal,
the second power amplifier is configured to amplify a second transmission signal within a second frequency band, which is different from the first frequency band, and output the amplified second transmission signal,
a pass band of the first filter is contained a first communication band within the first frequency band,
a pass band of the second filter is contained a second communication band within the first frequency band,
a pass band of the third filter is contained a third communication band within the second frequency band,
an output power level of the second transmission signal of the second antenna terminal is greater than an output power level of the first transmission signal of the first antenna terminal, and
the second power amplifier is connected to the third filter without a switch interposed therebetween.
2. The radio-frequency module according to claim 1 , wherein
the first communication band and the second communication band are a frequency division duplexing (FDD) band, and
the third communication band is a time division duplexing (TDD) band.
3. The radio-frequency module according to claim 1 ,
wherein the second frequency band is a frequency band located at a higher frequency than the first frequency band.
4. The radio-frequency module according to claim 2 ,
wherein the second frequency band is a frequency band located at a higher frequency than the first frequency band.
5. The radio-frequency module according to claim 1 ,
wherein the first transmission signal and the second transmission signal are configured to communicate simultaneously.
6. The radio-frequency module according to claim 1 , further comprising:
a controller that controls the first power amplifier and the second power amplifier,
wherein the controller has a first mode in which the first power amplifier and the second power amplifier are controlled to simultaneously operate and a second mode in which only one out of the first power amplifier and the second power amplifier is controlled to operate.
7. The radio-frequency module according to claim 4 , further comprising:
a controller that controls the first power amplifier and the second power amplifier,
wherein the controller has a first mode in which the first power amplifier and the second power amplifier are controlled to simultaneously operate and a second mode in which only one out of the first power amplifier and the second power amplifier is controlled to operate.
8. The radio-frequency module according to claim 7 ,
wherein the first transmission signal and the second transmission signal are configured to communicate simultaneously.
9. The radio-frequency module according to claim 1 , further comprising:
amounting substrate having a first main surface and a second main surface on opposite sides of the mounting surface; and
a plurality of external connection terminals that are disposed on the second main surface of the mounting substrate,
wherein the first filter, the second filter, the first power amplifier, the second power amplifier, and the third filter are disposed on the first main surface, and
the first switch and the second switch are disposed on the second main surface.
10. The radio-frequency module according to claim 8 , further comprising:
amounting substrate having a first main surface and a second main surface on opposite sides of the mounting surface; and
a plurality of external connection terminals that are disposed on the second main surface of the mounting substrate,
wherein the first filter, the second filter, the first power amplifier, the second power amplifier, and the third filter are disposed on the first main surface, and
the first switch and the second switch are disposed on the second main surface.
11. A radio-frequency module comprising:
a first antenna terminal;
a second antenna terminal;
a first switch that has a first common terminal connected to the first antenna terminal, a second common terminal connected to the second antenna terminal, a first selection terminal and a second selection terminal connectable to the first common terminal, and a third selection terminal connectable to the second common terminal;
a second switch that has a fourth selection terminal connected to the first selection terminal, a fifth selection terminal connected to the second selection terminal, and a third common terminal connectable to the fourth selection terminal and the fifth selection terminal;
a first filter connected to between the first selection terminal and the fourth selection terminal;
a second filter connected to between the second selection terminal and the fifth selection terminal;
a first power amplifier connected to the third common terminal;
a second power amplifier connected to the third selection terminal; and
a third filter connected to between the third selection terminal and the second power amplifier,
wherein the first power amplifier is configured to amplify a first transmission signal within a first frequency band and output the amplified first transmission signal,
the second power amplifier is configured to amplify a second transmission signal within a second frequency band, which is different from the first frequency band, and output the amplified second transmission signal,
a pass band of the first filter is contained a first communication band within the first frequency band,
a pass band of the second filter is contained a second communication band within the first frequency band,
a pass band of the third filter is contained a third communication band within the second frequency band,
an output power level of the second power amplifier is greater than an output power level of the first power amplifier, and
the second power amplifier is connected to the third filter without a switch interposed therebetween.
12. The radio-frequency module according to claim 11 , wherein
the first communication band and the second communication band are a frequency division duplexing (FDD) band, and
the third communication band is a time division duplexing (TDD) band.
13. The radio-frequency module according to claim 11 ,
wherein the second frequency band is a frequency band located at a higher frequency than the first frequency band.
14. The radio-frequency module according to claim 12 ,
wherein the second frequency band is a frequency band located at a higher frequency than the first frequency band.
15. The radio-frequency module according to claim 11 ,
wherein the first transmission signal and the second transmission signal are configured to communicate simultaneously.
16. The radio-frequency module according to claim 11 , further comprising:
a controller that controls the first power amplifier and the second power amplifier,
wherein the controller has a first mode in which the first power amplifier and the second power amplifier are controlled to simultaneously operate and a second mode in which only one out of the first power amplifier and the second power amplifier is controlled to operate.
17. The radio-frequency module according to claim 14 , further comprising:
a controller that controls the first power amplifier and the second power amplifier,
wherein the controller has a first mode in which the first power amplifier and the second power amplifier are controlled to simultaneously operate and a second mode in which only one out of the first power amplifier and the second power amplifier is controlled to operate.
18. The radio-frequency module according to claim 17 ,
wherein the first transmission signal and the second transmission signal are configured to communicate simultaneously.
19. The radio-frequency module according to claim 11 , further comprising:
amounting substrate having a first main surface and a second main surface on opposite sides of the mounting surface; and
a plurality of external connection terminals that are disposed on the second main surface of the mounting substrate,
wherein the first filter, the second filter, the first power amplifier, the second power amplifier, and the third filter are disposed on the first main surface, and
the first switch and the second switch are disposed on the second main surface.
20. The radio-frequency module according to claim 18 , further comprising:
a mounting substrate having a first main surface and a second main surface on opposite sides of the mounting surface; and
a plurality of external connection terminals that are disposed on the second main surface of the mounting substrate,
wherein the first filter, the second filter, the first power amplifier, the second power amplifier, and the third filter are disposed on the first main surface, and
the first switch and the second switch are disposed on the second main surface.